Hosted By Mrs. Hynes 100 200 400 300 400 Forms of Energy Energy Conversions Conservation of Energy Units & Formulas 300 200 400 200 100 500 100 200 300.

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Presentation transcript:

Hosted By Mrs. Hynes

Forms of Energy Energy Conversions Conservation of Energy Units & Formulas Do the Math

Row 1, Col 1 This form of energy comes from the nucleus of atoms. What is nuclear energy?

1,2 The change from one form of energy to another. What is an energy conversion?

1,3 Energy can not be created or destroyed, but it can be transformed into other types. What is the law of conservation of energy?

1,4 Joules. What is the unit for work and energy?

1,5 The gravitational potential energy of a 5 kg object that is 2 m above the ground. What is 98 J

2,1 Energy of motion What is kinetic energy?

2,2 Energy stored in rubber band or a drawn bow string. What is elastic potential energy?

2,3 On a rollercoaster as you go down a hill this energy increases as this energy decreases. What is kinetic and potential energy?

2,4 This equals force x distance What is work?

1,5 The work done lifting a 20 N object 7 m above the ground. What is 140 J

3,1 Energy stored in an object’s ability to fall. What is gravitational potential energy?

3,2 These energy conversions take place in a battery powered flashlight. What is chemical to electrical to light energy?

3,3 Due to friction all energy conversion will also create this type of energy. What is thermal energy?

3,4 The formula for kinetic energy. What is ½mv 2 ?

1,5 The mechanical energy of an object with 10 J of kinetic energy and 30 J of potential energy. What is 40 J?

4,1 The sum of potential and kinetic energy of an object. What is mechanical energy?

4,2 This energy transformation occurs, due to friction, when rubbing your hands together. What is kinetic to thermal energy?

4,3 This type of motion is impossible, due to friction. What is perpetual motion?

4,4 The formula for gravitational potential energy. What is weight x height (mgh)?

1,5 The power used doing 20 J of work in 40 sec. What is 0.5 Watts?

5,1 All of the kinetic energy due to the motion of the particles in an object. What is thermal energy?

5,2 This type of chemical reaction converts chemical energy into thermal energy. What are exothermic reactions?

5,3 The amount of useful energy compared to the amount of energy put in. What is energy efficiency?

5,4 This formula is the rate of change of work. What is Power = work/time?

1,5 The kinetic energy of a 8 kg mass moving 3 m/s. What is 36 J?